📊 What this ranking measures
Rankings are based on academic achievement — the share of students scoring proficient or above on state reading and math assessments (NCES EDFacts, 2021–22 for most districts), ranked against other districts in the same state — not on spending, district size, or staffing. See full methodology →
All 18 Rated Districts in Southeastern Connecticut Planning Region, CT
Sorted by rating, then state percentile
| County Rank | District | District Office | Rating | State Percentile |
|---|---|---|---|---|
| #1 | Salem School District | Salem | 8/10 Good | 79th |
| #2 | North Stonington School District | North Stonington | 8/10 Good | 78th |
| #3 | Stonington School District | Old Mystic | 8/10 Good | 78th |
| #4 | Colchester School District | Colchester | 7/10 Good | 67th |
| #5 | East Lyme School District | East Lyme | 7/10 Good | 65th |
| #6 | Lebanon School District | Lebanon | 6/10 Average | 59th |
| #7 | Franklin School District | North Franklin | 6/10 Average | 57th |
| #8 | Waterford School District | Waterford | 6/10 Average | 54th |
| #9 | Preston School District | Preston | 4/10 Below Average | 35th |
| #10 | Groton School District | Groton | 4/10 Below Average | 34th |
| #11 | Montville School District | Oakdale | 4/10 Below Average | 32nd |
| #12 | Ledyard School District | Ledyard | 3/10 Below Average | 29th |
| #13 | Bozrah School District | Bozrah | 3/10 Below Average | 22nd |
| #14 | Griswold School District | Griswold | 2/10 Poor | 13th |
| #15 | Sprague School District | Baltic | 1/10 Poor | 8th |
| #16 | Windham School District | Willimantic | 1/10 Poor | 6th |
| #17 | Norwich School District | Norwich | 1/10 Poor | 5th |
| #18 | New London School District | New London | 1/10 Poor | 2nd |
Best School Districts in Southeastern Connecticut Planning Region, Connecticut (2026)
This page lists the 18 public school districts headquartered in Southeastern Connecticut Planning Region, Connecticut that have a SchoolDistrictFinder rating, scored using EDFacts 2021–22 state assessment data. The county rank is simply their order here; the state percentile compares each district with every rated district in Connecticut, which is how the 1–10 rating is set. Ratings are not comparable with districts in other states.
Districts are placed in the county of their NCES directory listing. A district's boundaries can cross county lines, and a home in Southeastern Connecticut Planning Region may be served by a district headquartered next door — search your address or zip code to confirm.
Frequently Asked Questions
What is the best-rated school district in Southeastern Connecticut Planning Region, Connecticut? ▼
Among the 18 rated districts in Southeastern Connecticut Planning Region, Connecticut, the highest-rated is Salem School District (Salem), rated 8/10 (Good) and in the 79th percentile of Connecticut districts on EDFacts 2021–22 reading and math proficiency.
How are these rankings calculated? ▼
Each district's rating comes from the share of its students scoring proficient or above on state reading and math assessments (EDFacts 2021–22), percentile-ranked against all rated districts in Connecticut and converted to a 1–10 scale. Full methodology here.